CN210631861U - Heavy ash tail gas treatment system - Google Patents
Heavy ash tail gas treatment system Download PDFInfo
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- CN210631861U CN210631861U CN201920992979.3U CN201920992979U CN210631861U CN 210631861 U CN210631861 U CN 210631861U CN 201920992979 U CN201920992979 U CN 201920992979U CN 210631861 U CN210631861 U CN 210631861U
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- washing tower
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Abstract
The utility model belongs to the technical field of exhaust-gas treatment, concretely relates to heavy ash tail gas treatment system. The heavy ash tail gas treatment system comprises a bag-type dust collector, an induced draft fan, a tail gas washing tower, a booster pump, a washing circulating pump, a water bucket and a hot alkali liquor bucket; the bag-type dust collector is connected with an air inlet at the bottom of the tail gas washing tower through an induced draft fan, a liquid outlet at the bottom of the tail gas washing tower is connected with the hot alkali liquor barrel through a washing circulating pump, and a liquid outlet at the bottom of the tail gas washing tower is circularly connected with the washing circulating pump; the water barrel is connected with the tail gas washing tower through a booster pump; wherein, the top of tail gas scrubbing tower is equipped with the gas outlet. The utility model discloses a heavy grey tail gas processing system can avoid heavy grey tail gas to the corruption of environment, peripheral roof and equipment, and is friendly to the environment.
Description
Technical Field
The utility model belongs to the technical field of exhaust-gas treatment, concretely relates to heavy ash tail gas treatment system.
Background
The heavy ash is heavy soda ash, at present, a fluidized bed is used for producing the heavy ash, and the tail gas is directly emptied after being dedusted by a bag-type deduster. However, the bag-type dust collector is frequently damaged, so that the pollution to the roof and the surrounding environment and the corrosion to equipment are easily caused, and the bag-type dust collector is not friendly to the environment.
SUMMERY OF THE UTILITY MODEL
To exist not enough among the prior art, the utility model discloses a heavy grey tail gas processing system can avoid heavy grey tail gas to the corruption of environment, peripheral roof and equipment, and is friendly to the environment.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
a heavy ash tail gas treatment system comprises a bag-type dust collector, an induced draft fan, a tail gas washing tower, a booster pump, a washing circulating pump, a water bucket and a hot alkali liquor bucket; the bag-type dust collector is connected with an air inlet at the bottom of the tail gas washing tower through an induced draft fan, a liquid outlet at the bottom of the tail gas washing tower is connected with the hot alkali liquor barrel through a washing circulating pump, and a liquid outlet at the bottom of the tail gas washing tower is circularly connected with the washing circulating pump; the water barrel is connected with the tail gas washing tower through a booster pump; wherein, the top of tail gas scrubbing tower is equipped with the gas outlet.
Preferably, the tail gas washing tower comprises a circulating washing section and a cleaning section; clean section is located circulation washing section top, and wherein the cask passes through the booster pump and links to each other with washing section and clean section respectively, the liquid outlet of tail gas washing tower bottom passes through the washing circulating pump and links to each other with circulation washing section.
Preferably, the circulating washing section comprises a circulating washing section pall ring, a first spraying device, a second spraying device and a fluted disc type vapor-liquid distributor; the circulation washing section pall ring, the first spraying device, the second spraying device and the trough disc type vapor-liquid distributor are sequentially arranged from bottom to top, wherein the first spraying device is connected with a liquid outlet at the bottom of the tail gas washing tower through a washing circulating pump, the second spraying device is connected with the water barrel through a booster pump, and the trough disc type vapor-liquid distributor is connected with the hot alkali liquid barrel.
Preferably, the clean section comprises clean section corrugated structured packing, a third spraying device and a wire mesh demister; clean section ripple regular packing, third spray set and silk screen defroster set gradually from bottom to top, wherein, the third spray set passes through the booster pump and links to each other with the cask.
Preferably, the first spraying device and the second spraying device are composed of one or more than one spraying heads.
Preferably, the third spraying device consists of one or more than one spraying heads.
Compared with the prior art, the utility model, following beneficial effect has:
1. the utility model discloses a system design is reasonable, and heavy ash tail gas has improved site environment through multichannel purification treatment, and no harmful white dust is wafted, makes peripheral equipment avoid the corruption of heavy ash tail gas.
2. The system of the utility model has no waste liquid discharge, and the treated water can be used as the water for washing the hot alkali liquor in the previous process (calcining process), thereby not wasting water source.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of a heavy ash tail gas treatment system according to the present invention;
description of the drawings: the system comprises a bag-type dust collector 1, an induced draft fan 2, an air inlet 3, a tail gas washing tower 4, a circulating washing section pall ring 5, a first spraying device 6, a second spraying device 7, a trough disc type vapor-liquid distributor 8, a clean section corrugated structured packing 9, a third spraying device 10, a silk screen demister 11, an air outlet 12, a washing circulating pump 13, a booster pump 14, a water bucket 15 and a hot lye bucket 16.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments. It will be understood by those skilled in the art that the following examples are illustrative of the present invention only and should not be taken as limiting the scope of the invention. The specific techniques or conditions are not indicated in the examples, and the techniques or conditions described in the literature in the art are performed in accordance with the instructions.
Example 1
A heavy ash tail gas treatment system comprises a bag-type dust collector 1, an induced draft fan 2, a tail gas washing tower 4, a booster pump 14, a washing circulating pump 13, a water bucket 15 and a hot alkali liquor bucket 16; the bag-type dust collector 1 is connected with an air inlet 3 at the bottom of the tail gas washing tower 4 through an induced draft fan 2, a liquid outlet at the bottom of the tail gas washing tower 4 is connected with a hot alkali liquor barrel through a washing circulating pump, and a liquid outlet at the bottom of the tail gas washing tower 4 is circularly connected with a washing circulating pump 13; the water barrel 15 is connected with the tail gas washing tower 4 through a booster pump 14; wherein, the top of the tail gas washing tower 4 is provided with an air outlet 12.
The tail gas washing tower 4 comprises a circulating washing section and a cleaning section; the clean section is located circulation washing section top, and wherein the cask passes through booster pump 14 and links to each other with washing section and clean section respectively, the liquid outlet of tail gas scrubbing tower 4 bottom passes through washing circulating pump 13 and links to each other with circulation washing section.
The circulating washing section comprises a circulating washing section pall ring 5, a first spraying device 6, a second spraying device 7 and a fluted disc type vapor-liquid distributor 8; the circulation washing section pall ring 5, the first spraying device 6, the second spraying device 7 and the trough disc type vapor-liquid distributor 8 are sequentially arranged from bottom to top, wherein the first spraying device 6 is connected with a liquid outlet at the bottom of the tail gas washing tower 4 through a washing circulating pump, the second spraying device 7 is connected with the water barrel 15 through a booster pump 14, and the trough disc type vapor-liquid distributor 8 is connected with the hot alkali liquid barrel 16.
The cleaning section comprises a cleaning section corrugated structured packing 9, a third spraying device 10 and a wire mesh demister 11; clean section ripple regular packing 9, third spray set 10 and silk screen defroster 11 set gradually from bottom to top, wherein, third spray set 10 passes through booster pump 14 and links to each other with cask 15.
The first spraying device 6 and the second spraying device 7 are composed of one or more than one spraying heads.
The third spraying device 10 is composed of one or more than one spraying heads.
When the device is used, tail gas coming out of the heavy ash fluidized bed enters the bag-type dust collector 1, then enters the tail gas washing tower 4 from the air inlet 3 through the induced draft fan 2, fresh water enters the tail gas washing tower 4 from the water barrel 15 through the booster pump 14, the heavy ash tail gas is washed through the second spraying device 7 and the third spraying device 10, meanwhile, the fresh water of the third spraying device 10 plays a role of supplementing the liquid level of a circulating washing section, the heavy ash tail gas sequentially passes through the circulating washing section and a cleaning section from bottom to top, water in the circulating washing section with overhigh concentration flows back to the hot alkaline liquid barrel 16 through the trough disc type vapor-liquid distributor 8, the heavy ash tail gas is purified through the cleaning section corrugated structured packing 9 of the cleaning section, the third spraying device 10 and the wire mesh demister 11 to obtain purified gas, and the purified gas is discharged to the atmosphere through the air outlet at the top of the tail gas washing tower 4. Wherein, the water barrel 15 is filled with fresh water, the water barrel 15 is used for providing fresh water for the tail gas washing tower 4, the circulating washing section and the cleaning section are pressurized and atomized by the booster pump 14, the alkali dust particles in the heavy ash tail gas are fully absorbed, and the waste water returns to the hot lye barrel 16 to be used as the water for washing the hot lye in the previous process (the calcining process). When the outlet of the washing circulating pump 13 detects that the circulating liquid is more than 40tt, the circulating washing section backwater is discharged to the hot alkaline liquid barrel 16, and meanwhile, the circulating section fresh water is used for supplementing the washing liquid to the circulating washing section to maintain the liquid level stability and the washing effect.
The staff samples and analyzes the alkali dust-containing situation of the exhaust gas every four hours, and the measured data shows that: the detection mean value of the alkali dust content at the outlet of the induced draft fan 2 is 10mg/l, the alkali dust content of the tail gas discharged from the gas outlet 12 at the top of the tail gas washing tower 4 is 0.02mg/l, and the comparative removal rate reaches 99.8%.
The above description is only an embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (6)
1. A heavy ash tail gas treatment system is characterized by comprising a bag-type dust remover, an induced draft fan, a tail gas washing tower, a booster pump, a washing circulating pump, a water bucket and a hot alkali liquor bucket; the bag-type dust collector is connected with an air inlet at the bottom of the tail gas washing tower through an induced draft fan, a liquid outlet at the bottom of the tail gas washing tower is connected with the hot alkali liquor barrel through a washing circulating pump, and a liquid outlet at the bottom of the tail gas washing tower is circularly connected with the washing circulating pump; the water barrel is connected with the tail gas washing tower through a booster pump; wherein, the top of tail gas scrubbing tower is equipped with the gas outlet.
2. The heavy ash tail gas treatment system of claim 1, wherein the tail gas washing tower comprises a circulating washing section and a cleaning section; clean section is located circulation washing section top, and wherein the cask passes through the booster pump and links to each other with washing section and clean section respectively, the liquid outlet of tail gas washing tower bottom passes through the washing circulating pump and links to each other with circulation washing section.
3. The heavy ash tail gas treatment system of claim 2, wherein the cyclic washing section comprises a cyclic washing section pall ring, a first spraying device, a second spraying device and a fluted disc type gas-liquid distributor; the circulation washing section pall ring, the first spraying device, the second spraying device and the trough disc type vapor-liquid distributor are sequentially arranged from bottom to top, wherein the first spraying device is connected with a liquid outlet at the bottom of the tail gas washing tower through a washing circulating pump, the second spraying device is connected with the water barrel through a booster pump, and the trough disc type vapor-liquid distributor is connected with the hot alkali liquid barrel.
4. The heavy ash tail gas treatment system of claim 2, wherein the clean section comprises clean section corrugated structured packing, a third spray device and a wire mesh demister; clean section ripple regular packing, third spray set and silk screen defroster set gradually from bottom to top, wherein, the third spray set passes through the booster pump and links to each other with the cask.
5. The heavy ash tail gas treatment system according to claim 3, wherein the first spraying device and the second spraying device are composed of one or more than one spraying header.
6. The heavy ash tail gas treatment system according to claim 4, wherein the third spraying device is composed of one or more spraying heads.
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CN201920992979.3U CN210631861U (en) | 2019-06-28 | 2019-06-28 | Heavy ash tail gas treatment system |
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CN201920992979.3U CN210631861U (en) | 2019-06-28 | 2019-06-28 | Heavy ash tail gas treatment system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112933835A (en) * | 2021-02-01 | 2021-06-11 | 北京首钢朗泽新能源科技有限公司 | Fermentation tail gas washing system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112933835A (en) * | 2021-02-01 | 2021-06-11 | 北京首钢朗泽新能源科技有限公司 | Fermentation tail gas washing system |
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